Research Of Multi-ring Network With Multiple Heat Sources Of Heating Modes And Operating Conditions In Fuxin City

China’s building energy consumption accounts for about30%of the country’s total energyconsumption, while the heating, air conditioning, refrigeration energy consumption hasaccounted for30%of building energy consumption. In particular the heating industry, buildingenergy consumption for building heating energy consumption with the latitude developedcountires is about3times, the energy waste is enormous. Therefore, reducing heating energyconsumption, energy conservation work, has reached a critical state. The level of heating energyconsumption, not only energy-saving building wall itself, more technical equipment related toheating systems，management, and a vairety of reasons such as heating in the form.Multi-ring network technology is the heat source heat advanced countries abroad to saveenergy and reduce system operating costs, improve economic eiffciency, the integrated use ofpump speed and control technology developed on the basis of an advanced technique of hotwater pipe network，with the heating system toward large-scale, multi-heat source direction, thescale of many of the city’s heating network has more than ten million, forming a network patternof multiple heat sources. China’s central heating as a late start, compared with foreign countrieshave a certain gap.Based on the overall heat Fuxin development planning and to consider the present status ofheat to the heating unit in Fuxin City, the largest-City Corporation, a net heat as the researchobject, the heat source and heat of its existing network optimized adjusted to Fuxin Power Plantheat supply with the formation of a three-heat the ifrst stop of the heating mode of three-ringnetwork. Through the network graph theory to solve the multi-ring interconnection heathydraulic calculation of pipe network, and improved accuracy. Discussed a number of conditionsin the design of heat, heat start time and days of operation, and the intersection ring of hydraulicproblems, while a heat source or pipe accident, the analysis of the entire ring hydraulicconditions, changes in working conditions according to a computer remote control, adjust theheat a reasonable network load，network with multiple heat sources so as to run in the operatingconditions to provide a theoretical basis for regulation.